<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">工单系统</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="用户名"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>
      
      <el-form-item prop="role">
        <el-radio-group v-model="loginForm.role">
          <el-radio border label="user">用户</el-radio>
          <el-radio border label="support">客服</el-radio>
        </el-radio-group>
      </el-form-item>

      <el-button :loading="loading" type="primary" style="width:30%; margin:0px 20px 30px 12%; padding-left=5px" @click.native.prevent="handleLogin">登录</el-button>
      <el-button :loading="loading" type="primary" style="width:30%; margin:0px 20px 30px 10%;" @click="dialogVisible = true">注册</el-button>
      <!-- <div class="tips">
        <span style="margin-right:20px;">username: admin</span>
        <span> password: any</span>
      </div> -->
    </el-form>

    <el-dialog title="用户注册" :visible.sync="dialogVisible">
      <el-form ref="registerForm" :model="registerForm" :rules="registerRules" label-position="left" label-width="110px"> 
        <el-form-item label="用户名：" prop="username">
          <el-input v-model="registerForm.username" ref="username" auto-complete="on"></el-input>
        </el-form-item>
        <el-form-item label="密码：" prop="password">
          <el-input v-model="registerForm.password" ref="password" auto-complete="on" show-password></el-input>
        </el-form-item>
        <el-form-item label="确认密码：" prop="repassword">
          <el-input v-model="registerForm.repassword" ref="repassword" auto-complete="on" show-password></el-input>
        </el-form-item>
        <el-form-item prop="role" label="用户类型：">
          <el-radio-group v-model="registerForm.role">
            <el-radio border label="user">用户</el-radio>
            <el-radio disabled border label="support">客服</el-radio>
          </el-radio-group>
        </el-form-item>
      </el-form>
      
      <div slot="footer" class="dialog-footer">
        <el-button
          type="primary"
          @click.native.prevent="handleRegister"
        >注 册</el-button>
        <el-button @click="dialogVisible = false">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { validUsername } from '@/utils/validate'

export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (value.length < 2) {
        callback(new Error('用户名长度不能小于2位数'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码长度不能小于6位数'))
      } else {
        callback()
      }
    }
    const validateRepassword = (rule, value, callback) => {
      if(value != '' && value != this.registerForm.password)
        callback(new Error('两次密码不一致'))
      if (value.length < 6) {
        callback(new Error('密码长度不能小于6位数'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: '',
        password: '',
        role:'user',
      },
      registerForm: {
        username: '',
        password: '',
        role:'user',
        repassword: '',
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }],
        role:[{ required: true }]
      },  
      registerRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validateRepassword }],
        repassword: [{ required: true, trigger: 'blur', validator: validateRepassword }],
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined,
      dialogVisible: false,
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('user/login', this.loginForm).then(() => {
            this.$router.push({ path: '/' })
            this.$router.go(0)
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    handleRegister(){
      this.$refs.registerForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$delete(this.registerForm, 'repassword')
          this.$store.dispatch('user/register', this.registerForm).then((response) => {
            this.dialogVisible = false;
            this.$message({
              message: response.message,
              type: 'success'
            });
            this.loginForm.username = response.data.username
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      // caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item:nth-child(-n + 3){
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }

  .el-radio {
    color: #fff;
  }

  .el-dialog {
    width: 400px;
    font-size: 14px;
    font-weight: solid;
    font-family: sans-serif;
    background-color: #fff;
    .el-form-item {
      border: 0px;
      background-color: #fff;
      border-radius: 5px;
      .el-form-item__label {
        height: 47px;
        font-size: 14px;
        font-weight: solid;
        font-family: sans-serif;
      }
    }
    .el-input {
      width: 100%;
      input {
        font-size: 14px;
        font-weight: solid;
        font-family: sans-serif;
        border: 1px solid #DCDFE6;
        border-radius: 5px;
        color: black;
      }
    }
    .el-radio {
      color: black;
    }
  }
  .el-dialog__body{
    padding: 15px 20px 0px 20px;
  }
  .el-dialog__footer{
    padding: 0px 20px 20px;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
